Cowrie Research

quantstamp

3 min read

Quantstamp

  • Name: Quantstamp
  • URL: https://quantstamp.com/
  • Category: smart-contract and infrastructure security / web3 audit and penetration-testing platform / economic-exploit research and security tooling
  • Summary: Quantstamp is a large security vendor with more breadth than a plain audit shop. The durable part is the report factory, the infrastructure-testing surface, and a modest tooling footprint around rollup and ERC-4337 security. Keep it as a secondary platform note, not a category anchor.
  • What it does:
    • Performs smart-contract audits and broader security reviews for blockchain protocols, exchanges, clients, NFT projects, and infrastructure systems
    • Offers infrastructure-focused penetration testing for APIs, cloud systems, browser extensions, mobile apps, web apps, node operators, and SaaS-style offchain components around web3 systems
    • Runs economic exploit analysis aimed at identifying flash-loan and DeFi-mechanics vulnerabilities that may evade conventional code-only audits
    • Publishes audit-readiness guidance that emphasizes frozen code snapshots, high test coverage, specifications, and iterative fix review
    • Maintains a responsible-disclosure / bug-bounty process for its own surfaces
    • Incubated Chainproof, a regulated smart-contract insurance initiative positioned around non-custodial DeFi risk coverage
    • Publishes security-adjacent research and tooling on GitHub, including a rollup security framework and an ERC-4337 validation checker
  • Key claims:
    • The homepage says Quantstamp has worked with recognized names in web3 since 2017, has audited Layer 1s, Layer 2s, DeFi protocols, NFT marketplaces, exchanges, and clients, and provides managed security services post-deployment
    • The same homepage says its insurance product Chainproof secures customers against smart-contract hacks and slashing risks, which is an important clue that Quantstamp’s operating surface extends beyond audits
    • The infrastructure-audits page says “Web3 consists of smart contracts and the Web2 architecture around them,” then frames Quantstamp’s offering as a security review of infrastructure using both automated scanning and manual penetration testing across APIs, cloud systems, node operators, and other offchain components
    • The economic-exploits page says Quantstamp partnered with researchers to turn flash-loan-attack research into a “production-level automated tool” for uncovering economic exploit vulnerabilities
    • The audit-readiness guide says Quantstamp allocates a minimum of three audit engineers on every project, uses a mix of manual review and proprietary tooling, performs fix reviews, and points to public reports on certificate.quantstamp.com
    • The responsible-disclosure policy documents a bug-bounty-style reporting flow and explicitly scopes *.quantstamp.com as in-scope, which is useful evidence that the company runs a formal vulnerability-intake process for its own products
    • The Chainproof launch post says Chainproof was incubated by Quantstamp and positions it as a regulated insurer for non-custodial smart-contract risk, backed by Sompo and reinsured by Munich Re
    • Quantstamp’s GitHub repositories include a rollup security framework funded in part by an Ethereum Foundation grant and an ERC-4337 checker intended for validating account-abstraction constraints in Foundry tests, indicating a meaningful public tooling/research footprint
  • Whitepaper: No canonical standalone Quantstamp whitepaper or litepaper surfaced in this pass. The clearest current source of truth is the official site, audit-readiness and service pages, responsible-disclosure policy, Chainproof launch post, and first-party GitHub research/tooling repositories; see ../whitepapers/quantstamp-primary-sources-2026-04-30.md.

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